About: http://webisa.webdatacommons.org/162871433

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	my, libration is an oscillating motion of orbiting bodies relative to each other, notably including the motion of the Moon relative to Earth, or of Trojan asteroids relative to planets.'Libration (May 13, 2013, 19:45 UTC).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com